Can somebody me with this worksheet

Impressions of tropical swamp plants were observed on rocks in polar regions. the impressions were dark black imprints, which means the fossils are examples of ( 1 ) the fossils tell us that polar regions ( 2 ) ( 1 ) a. carbonization b. mineralization c. trace fossils ( 2 ) a. had tropical plants that can grow in ice b. might have had a diffierent climate in the past c. will have abundent vegitation

What would have happened to portugal’s trade if they had not found a way to sail around the tip of africa

Giving an address, such as "1000 elysian park avenue, los angeles, .ca, its an example of describing the